This would be a good New Year's to spend at home. Omicron makes people sick faster than earlier variants, according to a study released Tuesday by the Centers for Disease Control and Prevention that ...

With omicron coronavirus variant infections surging across the U.S., the delta variant is still around and dominates certain regions, CDC data shows. AP File Although the omicron coronavirus variant ...

Manal Mohammed is a senior lecturer of medical microbiology at the University of Westminster. Since the COVID variant Omicron emerged in late 2021, it has rapidly evolved into multiple subvariants.

Two pieces of good news about omicron to take into the new year: It may not be around for long, and people who are fully vaccinated don't need to worry, as long as they have a healthy immune system.

The CDC reduced the isolation period from 10 days to five days. Omicron seems to be more transmissible than delta, but perhaps not as much as previously thought. Omicron exposure might help in the ...

Tracking the spread of COVID-19 through testing data has its limits. Not everyone has access to tests, for instance, and people who are asymptomatic may not even seek a test out. These and other blind ...

Scientists are seeing signals that COVID-19′s alarming omicron wave may have peaked in Britain and is about to do the same in the U.S., at which point cases may start dropping off dramatically.The ...

Covid hospitalizations are surging, but a smaller proportion of cases is severe compared with previous waves. With staff shortages, some hospitals are still in crisis. By Emily Anthes and Azeen ...

The Omicron XBB subvariants now comprise over 50% of the Covid-19 cases in New York State. Will Holiday gatherings such as New Year's celebrations result in yet another Covid-19 surge? (Photo by YUKI ...

As countries worldwide relax Covid restrictions to pre-pandemic levels, the Omicron family of variants continues to prove that now is not the time to take off your mask and go to a crowded event. New ...